44040040040 has 16 divisors (see below), whose sum is σ = 99090090180. Its totient is φ = 17616016000.

The previous prime is 44040040021. The next prime is 44040040067. The reversal of 44040040040 is 4004004044.

44040040040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40098460516 + 3941579524 = 200246^2 + 62782^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 44040039994 and 44040040021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550500461 + ... + 550500540.

Almost surely, 2^44040040040 is an apocalyptic number.

44040040040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44040040040 is an abundant number, since it is smaller than the sum of its proper divisors (55050050140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44040040040 is a wasteful number, since it uses less digits than its factorization.

44040040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101001012 (or 1101001008 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 44040040040 its reverse (4004004044), we get a palindrome (48044044084).

The spelling of 44040040040 in words is "forty-four billion, forty million, forty thousand, forty", and thus it is an eban number.